Where did you get 75%? Last info I got was "23% of the mined coins" as info. And why you focus so strong on LTC? I got alraedy a few times that it's also DOGE and a 3rd one. As I wrote about, only 7 or 8 coins are big enough for this, and in two of them I found hash rate down ramps exactly fitting to the "energy shutdown" in May and also to the 850GH capacity. Combining this with an other coin which had not so a clear ramp, the numbers are perfect fitting.
On the other side your's and other's arguments are also not nonsense. And I know people personally (known them before scrypt.cc...) who have good and high withdrawn.
So for me there is still not a clear answer with facts.
I had many businesses myself of very different kinds in the past.
And if Marcelo realy has this good hardware and I would be in his place, I would also hide like hell.
I developed myself "forbidden" tech in the past, and had to hide years from "nice industry people...", after they did all to crash my business. So you can expect I'm not naive, but I have more than one perspective on things.
On the other side your's and other's arguments are also not nonsense. And I know people personally (known them before scrypt.cc...) who have good and high withdrawn.
So for me there is still not a clear answer with facts.
I had many businesses myself of very different kinds in the past.
And if Marcelo realy has this good hardware and I would be in his place, I would also hide like hell.
I developed myself "forbidden" tech in the past, and had to hide years from "nice industry people...", after they did all to crash my business. So you can expect I'm not naive, but I have more than one perspective on things.
It is called 'confirmation bias', meaning you are looking for things which might serve to support the claims that have been made about 'power issues' and altcoins. Hashrate fluctuations happen all the time, are they all supposed to be because scrypt.cc claim to have had one of their DC's get switched off?
As for Dogecoin, it is merge-mined, that extra hashrate it gained when they switched to what they call AuxPoW, comes from Litecoin miners on the Litecoin network which elect to merge-mine (not everybody merge-mines), the total scrypt hashrate for LTC merge-mining is not Litecoin+Dogecoin+Syscoin etc. It is simply Litecoin. (caveat: there will still be a few die-hards who will mine their favourite coin directly but the hashrate for them would be negligible compared to the juggernaut of Litecoin mining hash-power)
http://digiconomist.net/how-auxpow-affected-dogecoin-mining/
With regards to 'forbidden tech', you're just speculating based on what people have claimed. There is no evidence to suggest some secret scrypt-ASIC chips have been developed and sold, and it would be nonsensical to assert some guy in Brazil bought millions of dollars-worth of scrypt-ASIC miners from an unknown manufacturer when the hashrate for the total scrypt network for altcoins is already accounted for with the scrypt-ASIC units built by known manufacturers.
In any event, he doesn't need to show hardware to prove he has 850GH/s of scrypt miners at his disposal, he only needs to show evidence of the freshly mined blocks he'd be churning out each day. Apparently he can't do this either.
It looks like the same story here.. Numbers don't lie - they can not and do not have mining power and they do not mine alts. If they mine after all - they mine only a little fraction and do a so called fractional reserve mining scam where they have only like 50 GHS buy sell 500 anyway 
